Ventilation shield



FIG. 1 is an axonometric top, front, right view of a ventilation shield showing my new design.

FIG. 2 is an axonometric bottom, front, left view thereof.

FIG. 3 is a top plan view thereof.

FIG. 4 is a bottom plan view thereof.

FIG. 5 is a right side elevational view thereof.

FIG. 6 is a left side elevational view thereof.

FIG. 7 is a front elevational view thereof; and,

FIG. 8 is a rear elevational view thereof. 

CLAIM The ornamental design for a ventilation shield, as shown and described. 